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AMTROL was founded in 1946 on the premise that innovation, quality and service will be rewarded with customer loyalty and support. In 1954, we revolutionized the hydronic industry when we introduced Extrol, the world's first pre-pressurized diaphragm expansion tank. Since then, Amtrol has been the world leader in the design and operation of the vital mechanical systems that are used to control hydronic heating and to store potable water.
Today, that same spirit of innovation is part of every water heater, pressure booster, well tank and chemical container we manufacture. Over the years, we've continuously raised our stringent quality standards to even higher levels, to keep pace with the industry's rapid technological advancements, and to help us achieve ISO 9001 certification.
AMTROL products include water system solutions for storage, treatment, heating, expansion and flow control, along with a host of related HVAC products serving the residential, commercial, and industrial markets. Our subsidiaries include Watersoft, Inc., a manufacturer of specialized residential and commercial water treatment equipment based in Ohio; Amtrol Alfa, in Portugal, specializing in heating and refrigerant gas cylinders; and AMTROLNova GmbH, in Germany, a manufacturer of high-end residential and commercial water heaters. AMTROL employs 1700 people worldwide.